powerpc: T1023: Remove macro CONFIG_PPC_T1023

Replace CONFIG_PPC_T1023 with ARCH_T1023 in Kconfig and clean up
existing macros.

Signed-off-by: York Sun <york.sun@nxp.com>
diff --git a/arch/powerpc/cpu/mpc85xx/Kconfig b/arch/powerpc/cpu/mpc85xx/Kconfig
index 8b857d5..b2d95eb 100644
--- a/arch/powerpc/cpu/mpc85xx/Kconfig
+++ b/arch/powerpc/cpu/mpc85xx/Kconfig
@@ -196,6 +196,7 @@
 
 config TARGET_T1023RDB
 	bool "Support T1023RDB"
+	select ARCH_T1023
 	select SUPPORT_SPL
 	select PHYS_64BIT
 
@@ -354,6 +355,9 @@
 config ARCH_QEMU_E500
 	bool
 
+config ARCH_T1023
+	bool
+
 source "board/freescale/b4860qds/Kconfig"
 source "board/freescale/bsc9131rdb/Kconfig"
 source "board/freescale/bsc9132qds/Kconfig"
diff --git a/arch/powerpc/cpu/mpc85xx/Makefile b/arch/powerpc/cpu/mpc85xx/Makefile
index 0ff64a7..8988af1 100644
--- a/arch/powerpc/cpu/mpc85xx/Makefile
+++ b/arch/powerpc/cpu/mpc85xx/Makefile
@@ -53,7 +53,7 @@
 obj-$(CONFIG_PPC_T1042)	+= t1040_ids.o
 obj-$(CONFIG_PPC_T1020)	+= t1040_ids.o
 obj-$(CONFIG_PPC_T1022)	+= t1040_ids.o
-obj-$(CONFIG_PPC_T1023) += t1024_ids.o
+obj-$(CONFIG_ARCH_T1023) += t1024_ids.o
 obj-$(CONFIG_PPC_T1024) += t1024_ids.o
 obj-$(CONFIG_PPC_T2080) += t2080_ids.o
 obj-$(CONFIG_PPC_T2081) += t2080_ids.o
@@ -96,7 +96,7 @@
 obj-$(CONFIG_PPC_T1042)	+= t1040_serdes.o
 obj-$(CONFIG_PPC_T1020)	+= t1040_serdes.o
 obj-$(CONFIG_PPC_T1022)	+= t1040_serdes.o
-obj-$(CONFIG_PPC_T1023) += t1024_serdes.o
+obj-$(CONFIG_ARCH_T1023) += t1024_serdes.o
 obj-$(CONFIG_PPC_T1024) += t1024_serdes.o
 obj-$(CONFIG_PPC_T2080) += t2080_serdes.o
 obj-$(CONFIG_PPC_T2081) += t2080_serdes.o
diff --git a/arch/powerpc/cpu/mpc85xx/speed.c b/arch/powerpc/cpu/mpc85xx/speed.c
index a392414..a6d5206 100644
--- a/arch/powerpc/cpu/mpc85xx/speed.c
+++ b/arch/powerpc/cpu/mpc85xx/speed.c
@@ -206,7 +206,7 @@
 	defined(CONFIG_PPC_T2080) || defined(CONFIG_PPC_T2081)
 #define FM1_CLK_SEL	0xe0000000
 #define FM1_CLK_SHIFT	29
-#elif defined(CONFIG_PPC_T1024) || defined(CONFIG_PPC_T1023)
+#elif defined(CONFIG_PPC_T1024) || defined(CONFIG_ARCH_T1023)
 #define FM1_CLK_SEL	0x00000007
 #define FM1_CLK_SHIFT	0
 #else
@@ -216,7 +216,7 @@
 #define FM1_CLK_SHIFT	26
 #endif
 #if !defined(CONFIG_FM_PLAT_CLK_DIV) || !defined(CONFIG_PME_PLAT_CLK_DIV)
-#if defined(CONFIG_PPC_T1024) || defined(CONFIG_PPC_T1023)
+#if defined(CONFIG_PPC_T1024) || defined(CONFIG_ARCH_T1023)
 	rcw_tmp = in_be32(&gur->rcwsr[15]) - 4;
 #else
 	rcw_tmp = in_be32(&gur->rcwsr[7]);